Can you replace CPU fan?
yes, as long as it has the same mounting holes.
How do you clean a CPU fan?
Use compressed air to remove the dust away from the case. Finish off by wiping the bottom of the case with a damp cloth. For a CPU fan that is gunked up with dirt and dust, you may use a cotton swab soaked in isopropyl alcohol. The alcohol effectively removes the sticky gunk that has collected on the fan blades.
Can a CPU overheat?
Overheating of the CPU can cause instabilities in computer and destroy the processor. Learn how to check your CPU temperature and fix the problem. We all know that CPU overheating can cause problems with your computer. It may let your PC shut down automatically when you’re playing games or working.
Can you change CPU cooler without removing motherboard?
You should be able to install the cooler without removing motherboard. Cutout in the case allows accessing motherboard cpu area from both sides.